Questions tagged [usb]

For questions asking for a device that communicates over USB, Universal Serial Bus.

345 questions
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Are there ANY USB-C 'splitters' (hubs with multiple USB-C ports) in existence?

While hubs can be found that adapt USB-C to many USB 3.0 ports, or to mDP etc., it seems there is no product out there that simply turns a single USB-C into two or more USB-C ports? Is there a fundamental reason why this would be impossible to do?
Bibby
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10
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1 answer

Controller card(s) for handling eight USB 2.0 devices at full speed

Connecting two USB2 devices to an external USB2/3 HUB, connected to one USB2/3 port would normally limit the average read-speed to 240 Mb/s, and continuing adding devices would limit the average speed to 480Mb/s divided by number of devices. The…
4
votes
1 answer

USB power meter

I am looking for a USB power meter, i.e., a device that you can plug between a normal USB charger and a USB-powered device and that tells what is the voltage supplied by the charger and how much current is transferred. Ideally, I'd like to have a…
4
votes
1 answer

USB Type C hub / port replicator

So I bought a Samsung Galaxy Tab Pro S which has a single usb type c port. I also bought a usb c hub so I could connect it to an external monitor via hdmi. I also wanted to be able to boot into linux via flash drive, so I bought a usb c flash…
4
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0 answers

Power-In + Video-Out + USB Out for mobile phone? (Samsung S8)

I am looking for a cheaper alternative for the Samsung Dex Station or Samsung Dex Pad. Some phones like my Samsung S8, which happens to be a Samsung Dex compatible device can be turned into a full android desktop computer using a Samsung Dex Station…
3
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0 answers

Male USB C to Female USB C right-angle adapter

It's simple enough to imagine. I have a phone dock that has no connector of its own, but a place to thread a cable into it. I have a USB C male-to-male cable that goes from the wall charger to this dock. In order to preserve the cable's interior, I…
Ky -
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2
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USB to parallel port converter for more than printers

I sometimes need to tweak (python) software on a PC that doesn't have a parallel port yet the live system does and the software uses it. I need some way to convince my system that it has a parallel port - ideally a USB to parallel port converter…
jacanterbury
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2
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1 answer

USB hub with >=2.4A power *and* data

I'm a VR developer and need to keep multiple headsets both connected to my computer (as clients) and powered - where their expected continuous draw will be >2A, closer to 2.4 or 2.5A on average. What makes me nervous about most of the "USB-PD…
tophyr
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2
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2 answers

Replacement brand for Apple ANSI wired keyboard with numeric keypad?

I've recently (December 2022) learned that Apple no longer sells wired keyboards. My touch-typing has become extremely optimized for one of their USB keyboards and I'd like to find a suitable replacement. I use older Linux hardware, so anything with…
MRule
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2
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1 answer

Stereo line input for a laptop

I would like to have a solution to equip an average Windows 7 / 10 laptop with line-in input (stereo, 250-500 mV). All the USB sticks I found at Amazon have only the microphone input (2-5 mV). A microphone input has another voltage level, is a mono…
Paul
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2
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1 answer

Want small USB flash memory drive with micro USB connector

I tend to use [this sort of thing] as non-volatile storage for Raspberry Pis.(https://www.aliexpress.com/item/33000041651.html) I want something similar for a Raspberry Pi Zero with a micro-USB connector: I've used a converter cable to attach a…
2
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1 answer

Cheap 6x6 (or better) USB 2.0 matrix switch

I am looking for a device which is able to route at least six arbitrary USB 2.0 inputs to at least six arbitrary USB 2.0 outputs (6x6 matrix). It should have an interface like ethernet or RS-232 to control the routing. There should be no device…
braxlan
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Some hardware for multiple SIM cards SMS sending

I need some hardware for multiple SIM cards SMS sending. Preferably 200 sim cards. I would use Linux and some development boards like Raspberry pi etc. I have used raspberry with a USB dongle. Please advice solutions for multiple sim cards.
user9930
1
vote
0 answers

Where to buy male to male USB 3.0 extension cable that doesn't swap Transmit and Receive pairs?

Most male to male cables are meant to connect two active devices - I have some keystone jacks with female ports on both sides, so I just need male to male cable that behaves as a normal extension cable. Most cables of this types seem to be the first…
user2486570
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Usb type c Splitter

I am getting a Nintendo Switch charging dock which comes with one USB type c male port to charge a controller, but I have 2 controllers and I'm looking for a USB female to male Y-splitter or anything with two USB type c male outputs to charge, the…
Luke Jones
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